JSFiddle - React, Tailwind, and code Playground

by HemalathaThanigaivel

JavaScript

function swap(m, n){
  /* console.log(m,n) */
	n = m + n - (m = n)
  /* console.log(m,n) */
}

swap(2552,378525)

function missing(arr){
	for(let i=1; i < arr.length; i++){
  	if(arr[i] - arr[i-1] != 1){
    	console.log("missing", arr[i]-1)
    }
  }
}

let arr = [];
for(let i=1; i <= 100; i++){
	if(i != 4)
	arr.push(i)
}
console.log(arr)
missing(arr)